Astronomy news update from NASA :
These three bright nebulae are often featured on telescopic tours of the constellation
Sagittarius and the crowded starfields of the
central Milky Way. In fact, 18th century cosmic tourist
Charles Messier cataloged two of them;
M8, the large nebula just left of center, and colorful
M20 on the top left. The third emission region includes
NGC 6559 and can be found to the right of M8. All three are
stellar nurseries about five thousand light-years or so distant. Over a hundred
light-years across, the expansive M8 is also known as the
Lagoon Nebula. M20's popular moniker is the
Trifid. Glowing hydrogen gas creates the dominant red color of the
emission nebulae. In striking contrast, blue hues in the Trifid are due to dust
reflected starlight. Recently formed bright blue stars are visible nearby. The colorful composite skyscape was recorded in 2018 in
Teide National Park in the
Canary Islands,
Spain.
from NASA https://go.nasa.gov/2LU59L7
via
IFTTT
